Problem Solving Forum (22)


When refurbishing an old concrete secondary containment wall around a storage tank, what criteria should be used to determine if a crack can be repaired for coating or if the section of the wall should be rebuilt?


Under what conditions should small-diameter blisters (less than 1.5 inches) in a water tank lining be repaired/repainted? Should the blisters be broken and the substrate examined?


How do you determine the size of the dehumidification equipment required for a tank lining project?


When performing maintenance painting of tank coatings, what are the pros and cons of overcoating an existing lining that appears to be in good condition?


What is the special requirement for tank internal curing?


How does rapid depressurization affect lining performance in vessels and line pipe, and how can you identify any failure that might result?


How do you remove all traces of an uncured internal coating from a tank when abrasive blasting is not an option?


I have several water tanks constructed with carbon steel for demineralized water storage. The tanks are about 20 years old, and the original coating has started to blister. For refurbishment of the coating, what material should be used and at what dry film thickness? The original type of coating is unknown.


What type of generic coating is required to protect the inside of a tank containing liquid with pH ranging from 2 to 13 and operated at 65-80 degrees Celsius? Why?


What is the correct procedure for carrying out preventive maintenance painting work in a small chemical product tank?


What coating problems are likely in storage tanks that have dissimilar metal sides and floors?


What is the most common or economical coating system for rehabbing the exterior of above-ground storage tanks?


What is the preferred method to remove 25-year-old coal tar epoxy from a carbon steel tank in order to reline?


What is best media to use to remove aged epoxy coal tar from a steel tank before re-lining?


What is the correct procedure for carrying out preventive maintenance painting work in a small chemical product tank?


I have several water tanks constructed with carbon steel for demineralized water storage. The tanks are about 20 years old, and the original coating has started to blister. For refurbishment of the coating, what material should be used and at what dry film thickness? The original type of coating is unknown.


What type of generic coating is required to protect the inside of a tank containing liquid with pH ranging from 2 to 13 and operated at 65-80 degrees Celsius? Why?


What is best media to use to remove aged epoxy coal tar from a steel tank before re-lining?


What is the correct procedure for carrying out preventive maintenance painting work in a small chemical product tank?


When refurbishing an old concrete secondary containment wall around a storage tank, what criteria should be used to determine if a crack can be repaired for coating or if the section of the wall should be rebuilt?


I have several 20-year-old carbon steel tanks for storing demineralized water. The original coating (type unknown) has started to blister. What material, at what DFT, should be used to refurbish the coating?


What is the correct procedure for carrying out preventive maintenance painting work in a small chemical product tank?


 
 
   

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